87218020

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{6311}}^1$

素因数の和:7011

約数の個数: 24

約数和(自身を含む): 183451968

約数和(自身を除く): 96233948

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6311, 6910, 12622, 13820, 25244, 31555, 63110, 126220, 4360901, 8721802, 17443604, 21804505, 43609010, 87218020]

約数ペア:

[(1, 87218020), (2, 43609010), (4, 21804505), (5, 17443604), (10, 8721802), (20, 4360901), (691, 126220), (1382, 63110), (2764, 31555), (3455, 25244), (6311, 13820), (6910, 12622)]